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Title: Bursaphelenchus xylophilus and B. mucronatus secretomes: a comparative proteomic analysis
Authors: Cardoso, Joana M. S. 
Anjo, Sandra I. 
Fonseca, Luís 
Egas, Conceição 
Manadas, Bruno 
Abrantes, Isabel 
Issue Date: 12-Dec-2016
Project: This research was financed by Portuguese Foundation for Science and Technology (FCT) through national funds and the co-funding by FEDER- Fundo Europeu de Desenvolvimento Regional and COMPETEPrograma Operacional Factores de Competitividade, under the projects FCT PTDC/AGR-CFL/098916/2008 and FCT PTDC/NEU-NMC/0205/2012, within the PT2020 Partnership Agreement and COMPETE 2020 under the projects UID/BIA/04004/2013 and UID/NEU/04539/2013, the National Mass Spectrometry Network (RNEM, REDE/1506/REM/2005) and Instituto do Ambiente, Tecnologia e Vida, FCTUC. Joana M.S. Cardoso (SFRH/BPD/73724/2010) and Sandra I. Anjo (SFRH/BD/81495/2011) are funded by post-doctoral/ doctoral fellowships financed by QREN-POPH-Typology 4.1-co-financed by MES national funding and The European Social Fund. Luís Fonseca (SFRH/BPD/101325/2014) is funded by post-doctoral fellowship financed by MEC national funding and by the European Social Fund through POCH (Programa Operacional Capital Humano). 
Serial title, monograph or event: Scientific Reports
Volume: 6
Issue: 1
Abstract: The pinewood nematode, Bursaphelenchus xylophilus, recognized as a worldwide major forest pest, is a migratory endoparasitic nematode with capacity to feed on pine tissues and also on fungi colonizing the trees. Bursaphelenchus mucronatus, the closest related species, differs from B. xylophilus on its pathogenicity, making this nematode a good candidate for comparative analyses. Secretome profiles of B. xylophilus and B. mucronatus were obtained and proteomic differences were evaluated by quantitative SWATH-MS. From the 681 proteins initially identified, 422 were quantified and compared between B. xylophilus and B. mucronatus secretomes and from these, 243 proteins were found differentially regulated: 158 and 85 proteins were increased in B. xylophilus and B. mucronatus secretomes, respectively. While increased proteins in B. xylophilus secretome revealed a strong enrichment in proteins with peptidase activity, the increased proteins in B. mucronatus secretome were mainly related to oxidative stress responses. The changes in peptidases were evaluated at the transcription level by RT-qPCR, revealing a correlation between the mRNA levels of four cysteine peptidases with secretion levels. The analysis presented expands our knowledge about molecular basis of B. xylophilus and B. mucronatus hosts interaction and supports the hypothesis of a key role of secreted peptidases in B. xylophilus pathogenicity.
ISSN: 2045-2322
DOI: 10.1038/srep39007
Rights: openAccess
Appears in Collections:I&D CFE - Artigos em Revistas Internacionais

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